The motto of the borough, in Cornish, is Ro an mor hag an tyr, meaning "From the sea and from the land". It recognises the borough's connection with the sea (fishing and tourism) and the land (china clay and agriculture). St Austell, the largest settlement in Cornwall, did not have a Parish/Town Council.
Restormel is twinned by oath, which used to be accessible to view in the council offices[5] in St Austell, with Kreis Dithmarschen. This used to be part of the borough council; however, in recent years it has become a separate organisation.[clarification needed]